Lint clearing mechanisms for warpers, looms, and similar machines



Aug. 17 1926. 1,596,455

F. E. ROWE, JR., El AL LINT CLEARING MECHANISMS FOR WARPERS, LOOMS, ANDSIMILAR MACHINES Filed Oct. 23, 1924 2 Sheets-Sheet 1 INVENTORS I M 5 M,

*2; 21 L -ATTORFEY pended claims.

Patented Aug. 17, 1926.

UNITED STATES I 1,596,455 PATENT' OFFICE.

FRANK E. ROWE, JIL, OF WINCHESTER, AND GEORGE GOODCHILD, OF CHELMSFORD,

MASSACHUSETTS, ASSIGNORS T0 SACO-LOWELL SHOIS, OF BOSTON, MASSACHU-SETTS, A CORIfORATI ON OF MASSACHUSETTS.

LINED-CLEARING MECHANISM FQR WARPERS, LOOMS, AND SIMILAR MACHINES.

Application filed October 23, 1924. Serial No. 745,355.

This invention relates to warpers, looms and other machines designed tohandle a multitude of threads, and-especially to machines of thischaracter which include an automatic stop motion under the control of adetector mechanism.

In such machines a series of detectors or drop wires ordinarily isused,.each detector being supported on a thread, and the arrangement issuch that if a thread breaks the detector which it has been supportingwill drop and. initiate the action of the mechanism that stops themachine. It frequently happens that lint accumulates on the detectors insuflicient quantities to prevent their proper operation, and this isparticularly likely to occur'in a high speed warper or any other machinein which the thread is travelling past the detectors at a relativelyhigh speed. The present invention deals with this condition, and it hasfor, its chief object to devise a simple, inexpensive and reliable meansfor preventing such accumulations of lint. The invention is applicablenot only to machines equipped with an automatic detector-controlled stopmotion, but also to machines of the general types above indicated andwhich include combs through which the threads are guided,

or where the threads run in contact with stationary parts which for anyreason must be kept clear of lint.

The nature of the invention will be readily understood from thefollowing description when read in connection with the accompanyingdrawings, and the novel features will .be particularly pointed out inthe ap- Referring now to the drawings,

Figure 1 is a perspective view of certain of the parts of a beam warperequipped with a mechanism embodying this invention;

Fig. 2 is a cross-sectional view showing the relationship between theair trunk or conduit and the detectors or drop wires; and

Fig. 3 is a perspective view on a larger scale showing certain of theparts of the automatic stop motion and also showing a modified form ofthe invention.

In the machine shown 2 indicates the beam, 3 the front comb, and 4 therear comb of a beam warper of a well known commercial form. In usingthis machine the strands I or bobbins supported on a creel, thethreadspassing through the rear comb 4, over and under the usual guidingand take-up rolls,"

thence through the front comb 3 and over the roll 5 to the beam 2. Justbefore the threads reach the front comb 3 they pass under detectors ordrop wires 6.

The stop motion shown is of the form known commercially as the Crompton& Knowles stop motion and operates in general like the mechanism shownin the Regan Re-issue Patent No. 14,829. Reference may be made to thispatent for a detailed description of the construction and operation ofthis type of stop motion. This mechanism is under the control of adetector mechanism, one detector being mounted on each strand of thread.Each detector 6 consists of a thin metal plate having upper and lowerslots 7 and 8, respectively, punched therethrough. Normally the detectorrides on a thread indicated at S, Fig. 2. The entire series of detectorsis supported between two rigid bars 99, and when athread breaks,

its detector drops until the upper reducedend of the slot 7 engages theoscillating bar 10. In this position the detector prevents furtheroscillation of the bar and thus trips in the mechanism which stops themachine. Referring more particularly to Fig. 3 it will be observed thatthe bar 10 is normally oscillated by connections with, a rocking lever12 fulcrumed on a stud 13 and driven arm 16 of a bell crank lever thatis'secured to the end of the bar 10. The other arm '17 adjustablysecured to a latch 20 which is pivoted at 21 to a rocker arm 22. Thisarm is fulcrumed on the stud 13. As the lever 12 oscillates and thusoperates through the connections just described to rock the bar 10, thepin 18 operates through the part 10 to swing the point 23 of the latch20 out of the path of travel of the shoulder 24 on the lever 12. Whenthe detector 6 drops, however, as above described, and prevents the bar10 from oscillating, the arm 17 is also held against oscillation, andconsequently when the lever 12 swings upwardly and the shoulder 24 movestoward the right, Fig. 3,

Aug 17 1926. 1,596,455

F. E. RQVVE,.JR EI'AL LINT CLEARIN MECHANISMS FOR WARPERS, LOOMS, ANDSIMILAR MACHINES Filed 001;. 25, 1924 2 Sheets-Sheet 2 2 ATTORNEYINVENTO M" means holes through the Wall thereof to direct currents ofair across said threads, and means for moving said conduit to traversesaid currents of air over the threads.

6. In a machine having means for supporting a multitude of threads, aconduit located transversely of said threads and adjacent to them, ablower for forcing air through said conduit, said conduit having holesthrough the wall thereof to direct air across said threads, and meansfor oscillating said conduit about an axis extending longitudinallythereof.

7. In a machine havingmeans for supporting a multitude of movingthreads, the

combination of relatively stationary devices engaging said threads, aconduit extending across said threads and located adjacent to them, ablower for forcing air through said conduit, and means for oscillatingsaid conduit about an axis extending longitudinally thereof, saidconduit having holes through the wall thereof to direct air across saidthreads in the neighborhood of said devices.

8. In a machine having means for supporting a multitude of threads andan automatic stop motion including a series of detectors mounted on therespective threads, the combination of a conduit extending across saidthreads adjacent to said detectors, a stationary blower for forcing airthrough said conduit, said conduit having holes through the wall thereofto direct air across said threads in the neighborhood of said detectors,and connections between said conduit and said stop motion foroscillating said conduit about an axis extending longitudinally thereof.

In testimony whereof we have signed our names to this specification.

FRANK E. ROWE, JR. GEORGE GOODCHILD.

